Question

Unfortunately trying to install dvdstyler I get the following error (actually the system is "consistent")

ci7ht ~ # emerge -DNu world
Calculating dependencies ... done!
Auto-cleaning packages ... >>>
>>> No outdated packages were found on your system.
ci7ht ~ # emerge -DNu world dvdstyler
Calculating dependencies ... done!
! Multiple package instances within at single package slot Have Been pulled
! into the dependency graph, Resulting in a slot conflict:
media-libs / libsdl: 0
(media-libs / libsdl-1.2.15-r4 :: gentoo, ebuild scheduled for merge) pulled in by
(That no parents are not satisfied by other packages in this slot)
(media-libs / libsdl-1.2.15-r7 :: gentoo, installed) pulled in by
>=media-libs/libsdl-1.2.15-r4[sound,video,abi_x86_32(-)?,abi_x86_64(-)?,abi_x86_x32(-)?,abi_mips_n32(-)?,abi_mips_n64(-)?,abi_mips_o32(-)?,abi_ppc_32(-)?,abi_ppc_64(-)?,abi_s390_32(-)?,abi_s390_64(-)?] required by (media-video / ffmpeg-2.2.4 :: gentoo, installed)
It may be possible to solve this problem by using package.mask to
One of Those prevent packages from being selected. However, it is Also
That possible conflicting dependencies exist longer available That they are
impossible to Satisfy simultaneously. If a conflict exists longer available in
the dependencies of two different packages, then Those packages can
not be installed simultaneously. You may want to try a larger value of
--backtrack the option, as longer available --backtrack = 30, in order to see if
That will solve this conflict automatically.
For more information, see MASKED PACKAGES section in the emerge man
page or the refer to the Gentoo Handbook.
emerge: there are no ebuilds to satisfy "> = virtual / libudev-215: =".
(dependency required by "media-video / dvdstyler-2.7.2 [udev]" [ebuild])
(dependency required by "dvdstyler" [argument])

There are not packages That satisfied> = virtual / libudev-215: = but: